Friday, January 6, 2017

GMT CHUCK DISMANTLING PROCEDURE



1.       Remove the hard jaws / soft jaws from the base jaws by loosening the socket head screws along with the T’ Nuts.
2.       Remove the cover  with cover adaptor (if available) from the chuck.
3.       Loosen the chuck clamping screws which are used for mounting the chuck on the flange.
4.       Do not loosen the screw  fully threads must be engaged with flange .
5.       Ensure that a wooden plank is placed below the chuck on the guide ways of the lathe.
6.       Using the special spanner (Provided along with chuck), rotate the collar  till the drawtube is completely disengaged.
7.       If it is special execution chuck, then using the Allen key (provided with the chuck) loosen the wedge screw till it disengages from the draw bar.
8.       Then loosen the chuck clamping screws fully from the flange, so that the chuck comes out from the flange.
NOTE : DO NOT LOOSEN THE COLLAR OR WEDGE SCREW WITHOUT LOOSENING THE CHUCK CLAMPING SCREWS.
9.       After removing the chuck from the machine spindle, keep it in a table and pull out the wedge along with wedge adaptor and collar.
10.   Push the base jaw towards the wedge bore of the chuck and remove them.

NOTE : DO NOT HAMMER THE BASE JAWS WITH STEEL. ALWAYS USE ALUMINIUM OR PLASTIC MALLET.

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